Abstract

Humans are exposed to ultraviolet radiation in their normal day-to-day lives. Much research has been conducted into the impact of exposure to UVB radiation (280 – 320nm), whist research into impact of exposures to UVA radiation (320 – 400 nm) is gaining momentum. Exposure to UVA radiation has been linked to increasing the risk of skin cancer, DNA damage, ocular diseases and immunosuppression. Unlike UVB radiation, UVA radiation is transmitted through material such as window glass found in offices and homes.Accordingly, humans are exposed to this radiation in environments where UV exposure is not normally associated (indoors).This paper describes a prototype UVA dosimeter that is responsive to the UVA wavelengths only and does not respond to the UVB wavelengths and how this dosimeter can be used to assess personal UVA exposure.